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Hysteretic Model for Superelastic NiTi Shape Memory Alloys
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초탄성 NiTi 형상기억합금의 이력모델 개발

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Type
Academic journal
Author
Lee, Chang Seok (한양대학교) Jeon, Jong-Su (한양대학교)
Journal
Korean Society Of Steel Construction Journal of Korean Society of Steel Construction Vol.33 No.6 KCI Accredited Journals
Published
2021.12
Pages
373 - 381 (9page)

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Hysteretic Model for Superelastic NiTi Shape Memory Alloys
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Abstract· Keywords

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This study presents a simple hysteretic model to reproduce the stress-strain response of superelastic NiTi shape memory alloys (SMAs). The developed model is capable of simulating the functional degradation of SMAs, which causes the reduction of the transformation stress and the accumulation of permanent strain. Computational efficiency is achieved by idealizing the stress-strain response in a multi-linear phenomenological manner. The model capability is validated against existing experimental results. The developed model reproduced the experimental transformation stress reduction and permanent strain accumulation with fair accuracy.
#형상기억합금 #NiTi shape memory alloys #Superelasticity #Functional degradation #Hysteretic model #Stress-strain response #초탄성 #기능저하 #이력모델 #응력-변형률 응답

Contents

Abstract
1. 서론
2. 기능저하를 고려한 NiTi SMA 모델 개발
3. 기존모델과 개발모델의 비교
4. 모델 매개변수 민감도 분석
5. 실험결과와 해석결과의 비교
참고문헌(References)
요약

References (27)

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DesRoches, R. / 2004 / Shape Memory Alloys in Seismic Resistant Design and Retrofit: A Critical Review of Their Potential and Limitations / Journal of Earthquake Engineering 8(3):415~429 google schola Saadat, S. / 2002 / An Overview of Vibration and Seismic Applications of NiTi Shape Memory Alloy, Smart Materials and Structures / IOP Publishing 11(2):218~229 google schola Wilson, J. C. / 2005 / Shape Memory Alloys for Seismic Response Modification:A State-of-the-Art Review / Earthquake Spectra 21(2):569~601 google schola McCormick, J. P. / 2006 / Cyclic Behavior of Shape Memory Alloys: Materials Characterization and Optimization google schola Fang, C. / 2014 / Cyclic Performance of Extended End-Plate Connections Equipped with Shape Memory Alloy Bolts / Journal of Constructional Steel Research 94:122~136 google schola

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